WO2007134757A2 - Machine à pistons axiaux avec une fusee de guidage pour un segment de cage - Google Patents
Machine à pistons axiaux avec une fusee de guidage pour un segment de cage Download PDFInfo
- Publication number
- WO2007134757A2 WO2007134757A2 PCT/EP2007/004322 EP2007004322W WO2007134757A2 WO 2007134757 A2 WO2007134757 A2 WO 2007134757A2 EP 2007004322 W EP2007004322 W EP 2007004322W WO 2007134757 A2 WO2007134757 A2 WO 2007134757A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- guide
- cage segment
- pivot
- pivot bearing
- axial piston
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/0032—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F01B3/0044—Component parts, details, e.g. valves, sealings, lubrication
- F01B3/007—Swash plate
- F01B3/0073—Swash plate swash plate bearing means or driving or driven axis bearing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
- F04B1/2085—Bearings for swash plates or driving axles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/50—Other types of ball or roller bearings
- F16C19/502—Other types of ball or roller bearings with rolling elements in rows not forming a full circle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/306—Means to synchronise movements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
Definitions
- the invention relates to an axial piston machine.
- Adjustment device is pivoted back and forth. In such pivotal movements in the circumferential direction of the arcuate curvature and the cage segment is moved in the circular arc direction, wherein the movement length due to the rolling function of the rolling elements is substantially only half as large as the pivoting movement of the swash plate.
- the cage segment displaces from its desired position with respect to its associated swivel range in the circular arc direction. This is undesirable because the cage segment thereby loses its desired storage position.
- Bearing position of the cage segment is favored in functional operation of the axial piston machine in such pivotal positions in which the rolling elements of the cage segment have incorporated small wear recesses in the curved bearing surfaces of the pivot bearing parts.
- Such wear depressions favor an undesirable displacement of the cage segment, in particular if they are located in the end region of the pivoting region of the cage segment.
- a guide device described in EP 0 649 974 B1 has an elongate guide element which is formed from a one-piece wire which has a circular wire loop formed by bending the wire at both ends of the guide element and in its central area. With the middle wire loop, the guide element is rotatably mounted parallel to the pivot plane on a bearing pin projecting laterally from the cage segment. In this case, the guide element is rotatable in its central region and immovably connected in its longitudinal direction with the guide segment. The wire loops at the ends of the guide element are each slidably mounted in a sliding guide in the longitudinal direction of the pivot bearing parts.
- the guide element is stabilized at its ends, although by the wire loop shape, but the guide element in its central region by the wire loop located there in the form of a coil not only considerably wider than the wire cross-section, but the guide element also has a relatively low elasticity in its bending stress.
- a present guide device is described with two spring elements for guiding the cage segment, wherein the two spring elements are formed by the legs of a U-shaped spring, which is connected only to a pivot bearing part and whose legs are transverse to the gap between extend the pivot bearing parts and stand with the cage segment in driving connection.
- the invention has for its object to improve the leadership of the cage segment in an axial piston machine. It is the elasticity and / or the return force of the guide element can be increased. In addition, a small and in particular narrow construction for the cage guide is to be achieved, with a stable and durable construction to be achieved in the further.
- the invention is based on the finding that for the guide element on the one hand a sufficient elastically yielding securing or driving force and on the other hand a space-favorable design for the cage segment is required.
- the first guide leg and / or the one has second guide legs of the guide element in each case a transversely directed formation.
- the elastic compliance of the angular guide element is increased without significantly affecting the elastic modulus of the guide element.
- the design of the invention can also be realized in space. It is also achieved a cost-producible construction, since a formation can be easily and inexpensively produced by a deflection of the relevant or the guide leg.
- the cage segment by two on both sides of the first
- FIG. 1 shows an axial piston according to the invention in axial section.
- FIG. 2 a perspective view of a guide device according to the invention for a cage segment of a pivot bearing of the axial piston machine;
- FIG. 6 shows a guide device according to the invention of the axial piston machine in axial section in a modified embodiment and enlarged representation
- FIG. 7 shows the guide device according to FIG. 6 in the right side view
- FIG. 8 shows the partial section VIII-VIII in FIG. 6.
- the axial piston machine designated in its entirety by 1, has a cylindrical drum 2, which sits in a rotationally fixed manner with a suitable axial hole on a shaft 3 and is rotatably supported by the shaft 3 in a housing 4 shown in a suggestion.
- the housing has z. B. a housing base 4a, from which a partially shown peripheral wall 4b pot-shaped extending to a cover 5, which closes the pot-shaped housing 4 and is designed as a so-called connection part for supply and discharge lines of a hydraulic line circuit.
- the shaft 3 is rotatably mounted in pivot bearings 6, 7 on the housing base 4a and the cover 5, wherein it forms a drive shaft 3 or output shaft 3 depending on the use of the axial piston machine 1 as a pump or as a motor.
- a plurality of cylinder bores 8 are distributed over a circumference, which may extend parallel to the axis of rotation 3a of the shaft 3 or inclined thereto, and in which piston 9 are slidably mounted back and forth, the cylinder drum 2 at its the lid 5 facing away from the side and are supported by means of sliding blocks 11 on a swash plate 12.
- the swash plate 12 is pivotally mounted in a pivot bearing 13 about a pivot axis 13a back and forth, which extends in a transverse plane El, which is perpendicular to the axis of rotation 3a containing axial plane E2.
- the throughput volume of the axial piston machine 1 can either reduce or increase.
- the axial piston movement and the throughput volume are zero or at least very low.
- the pivoting angle Wl pivoted to the maximum pivot position shown in FIG. 2 the piston movements and the throughput volume are maximum.
- the swash plate 12 is pivotally supported in the space formed by two pivot bearing parts 13b, 13c pivot bearing 13, the axis of rotation 3a are arranged side by side longitudinally and have, on their mutually facing sides in each case on both ⁇ sides of the shaft 3, two circular arc section-shaped curved bearing surfaces 13d, 13e have a parallel to the axis of rotation 3a extending distance a from each other.
- a cage segment 15 is arranged with a plurality of rolling elements 13f.
- the bearing surfaces are cylindrical section-shaped and the rolling elements 13f are cylindrical.
- the radial outer pivot bearing part 13b may be formed by two bearing shells, which are guided laterally on both sides of the axis of rotation 3a and centered by pins inside the housing base 4a.
- both sides of the shaft 3 existing bearing surfaces 13 d, 13 e may also be formed in each case by a common bearing surface which passes through the shaft 3 in a feedthrough hole 16, the z in the pivoting direction according to the double arrow 17 z. B. as
- cage segment or segments 15 are each designated 18 in their entirety
- the guide member 19 is an elongate, in particular pin-shaped, component, for. B. made of elastically flexible material, and in the embodiment by a profile piece, z. B. in the form of a wire, in particular of metal such as steel, z. B. spring steel formed.
- the cross-sectional shape of the guide element 19 is preferably circular. It is pivotally mounted at one of its two ends by a pivot bearing 21 with a bearing hole 21a, which extends parallel to the pivot axis 13a and in which a transversely projecting from the guide member 19 guide leg 19b about the associated axis of rotation 21 is pivotally mounted.
- the guide leg 19b is z. B. in this first pivot bearing 21, the guide member 19 is immovably mounted in its longitudinal direction on the pivotable pivot bearing part 13 c.
- the guide element 19 is pivotally mounted by a second pivot bearing 22 with the cage segment 15 about an axis of rotation 22c extending parallel to the pivot axis 13a, this second pivot bearing 22 being combined with a first longitudinal guide 23 for the guide element 19, so that the guide element 19 during a Rotary movement in the second pivot bearing 22 can perform a longitudinal movement in one or the other longitudinal direction.
- the second pivot bearing 22 is formed by a pivot pin 22a, which is mounted in a temporally opening out bearing hole 22d about the pivot axis 13a extending hinge axis 22c pivotally mounted in the associated cage segment 15, wherein the guide member 19, the pivot 22a with a slight movement play in a guide hole 22b Maschinenutzt.
- the first longitudinal guide 23 is formed.
- the guide member 19 is connected in its first pivot bearing 21 remote end portion by a slotted guide 24 with the non-pivoting pivot bearing part 13 b.
- the slide guide 24 is formed by a pivot bearing 24a and a longitudinal guide 24b for the guide member 19 and the guide leg 19a, and it has a round hinge pin 24c which is rotatably mounted in a parallel to the pivot axis 13a in the pivot bearing 13b arranged rotary bearing hole 24d and a has the longitudinal guide 24b forming transverse bearing hole 24e, in which the guide member 19 and its guide leg
- the axis of rotation of the pivot bearing 24a which is also parallel to the pivot axis 13a, is designated by 24f.
- the transverse bearing hole 24c is located in the region of a
- the recess 13g can be formed by a lateral free space.
- Guide element 19 formed by a one-piece bent wire, which is characterized by low material consumption, low weight and by a relatively large strength.
- a transversely directed formation 25 is arranged in the guide leg 19a and / or in the guide leg 19b, which is preferably formed by a deflection of the guide leg or legs 19a, 19b, whereby the guide element 19 is a one-piece component, in particular a bent part, is.
- the formation 25 may extend in the one guide leg to the other guide leg or extend beyond, wherein the molding 25 may be formed to the free end of the other guide leg out (not shown) or facing away from the free end of the other guide leg Side can be formed, as shown in FIGS. 1 to 5 show.
- the two guide legs 19 a, 19 b can cross adjacent to each other, wherein the formation 25 by a common formation 25 z. B. in the form of a loop 25a for both guide legs 19a, 19b and is facing away from both free ends of the guide legs 19a, 19b.
- the shape of the loop 25a may be round, triangular or square, preferably with rounded corners.
- the center axes of the guide legs 19a, 19b are preferably located in a common plane E3 (see Fig. 3 and I) 1 which also contains the central axes of the pivot bearings 21, 24a.
- the loop 25a is formed transverse to this plane E3 ( Figure 5), so that the region 26 of the loop 25a facing away from the crossing point of the guide legs 19a, 19b forms an acute angle W2 with the plane E3 ,
- the first guide leg 19a is bent by an S-shape Longitudinal section 27 of the guide member 19 connected to the laterally offset portion of the loop 25a.
- the guide legs 19a, 19b are interconnected by a bent bending portion, which increases the elastic flexibility between the guide legs 19a, 19b, without substantially affecting the elastic modulus between the guide legs 19a, 19b.
- the guide member 19 is thus able to resiliently yield position deviations of the cage segment 15 and the cage segment 15 to move back into its desired position by the occurring back bending stress.
- the molding 25 is in the embodiment of FIG. 2 space in a z. B. laterally open and z. B. rounded recess 13h in the pivot bearing part 13d or in the embodiment of FIG. 1 in a next to the Schenklagerteil 13c existing space in the interior of the housing.
- a spring is integrated into the angular guide member 19, in the embodiment shown in FIG. 6 to 8, are provided in the same or comparable parts with the same reference numerals, two additional spring elements 30a, 30b, which are the rigid or elastic bend flexible guide member 19 laterally on both sides of its pivoting plane E4 and elastically support the cage segment 15 on the guide leg 19a in both pivoting directions.
- Guide element 19 biased biasing force are biased, each of which results in the associated spring force 31a, 31b. Due to this biasing force, the spring force 31a, 31b does not start at a lateral displacement of the guide element or guide leg 19a
- the spring elements 30a, 30b are mounted on the cage segment 15 in such a way that they can cushion from the guide leg 19a and spring back again.
- the spring elements 30a, 30b are mounted on the cage segment 15 in such a way that they can cushion from the guide leg 19a and spring back again.
- the Spring elements 30a, 30b each bias against a stop Al, A2 in such positions that the spring elements 30a, 30b have a distance x from each other, the corresponding cross-sectional dimension of the guide leg 19a, in particular its diameter, so that the guide leg 19a in between is easily movable with little movement play.
- the spring elements 30a, 30b also form the pivot bearing 22, in particular when they are rounded at least on their sides facing each other in cross section, in particular each formed by a round pin.
- the spring elements 13a, 13b are formed by the legs of a U-shaped common spring 30, whose end portion in associated spring web 30c in a recess 33 of the cage segment 15 sits, z. B. between a rolling element 13f and a disposed between the base surfaces of the grooves 32 web 34 of the pivot pin 22a in the cage segment 15th
- the spring leg of the U-shape connecting spring web 30c by a spring coil 35 which extends transversely to the spring plane of the spring legs and the rod-shaped spring elements 30a, 30b formed thereby connects to each other.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
- Actuator (AREA)
- Fluid-Damping Devices (AREA)
Abstract
L'invention concerne une machine à pistons axiaux (1) avec un palier pivotant (13) constitué de deux parties de palier pivotant (13b, 13c) et un axe de pivotement (13a) pour un disque oblique (12), avec une fente (a) arrondie et courbée en forme de portion d'arc de cercle entre les parties de palier pivotant (13b, 13c) et un segment de cage (15) disposé dans cette fente, le segment de cage (15) étant guidé par un élément de guidage (19) de forme coudée. L'élément de guidage (19) présente une première fusée de guidage (19a) s'étendant transversalement à la fente (a) et passant par-dessus elle, qui est montée par le biais d'un premier palier rotatif (21) de manière à pouvoir tourner autour de son premier axe de rotation (21b) s'étendant parallèlement à l'axe de pivotement (13a) et de manière à pouvoir coulisser par le biais d'une première coulisse longitudinale (23) sur le segment de cage (15), et qui est connectée dans l'une de ses parties d'extrémité à une deuxième fusée de guidage (19b) s'étendant transversalement au plan de pivotement (E4) de la première fusée de guidage (19a), laquelle deuxième fusée de guidage (19b) est connectée à rotation à la première partie de palier pivotant (13b) par un deuxième palier rotatif (24a). Afin d'améliorer le guidage du segment de cage (15), la première fusée de guidage (19a) et/ou la deuxième fusée de guidage (19b) présentent chacune une formation (25) orientée transversalement.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT07725239T ATE476582T1 (de) | 2006-05-19 | 2007-05-15 | Axialkolbenmaschine mit einem führungsschenkel für ein käfigsegment |
DE502007004652T DE502007004652D1 (de) | 2006-05-19 | 2007-05-15 | Axialkolbenmaschine mit einem führungsschenkel für ein käfigsegment |
CN2007800011540A CN101356341B (zh) | 2006-05-19 | 2007-05-15 | 带有用于笼形段的导承分支的轴向活塞机 |
EP07725239A EP2018465B1 (fr) | 2006-05-19 | 2007-05-15 | Machine à pistons axiaux avec une fusee de guidage pour un segment de cage |
JP2009511371A JP5007375B2 (ja) | 2006-05-19 | 2007-05-15 | 保持器セグメントのためのガイドリムを備えるアキシャルピストン機械 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006023711.0 | 2006-05-19 | ||
DE102006023711A DE102006023711A1 (de) | 2006-05-19 | 2006-05-19 | Axialkolbenmaschine mit einem Führungsschenkel für ein Käfigsegment |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007134757A2 true WO2007134757A2 (fr) | 2007-11-29 |
WO2007134757A3 WO2007134757A3 (fr) | 2008-04-03 |
Family
ID=38461767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/004322 WO2007134757A2 (fr) | 2006-05-19 | 2007-05-15 | Machine à pistons axiaux avec une fusee de guidage pour un segment de cage |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2018465B1 (fr) |
JP (1) | JP5007375B2 (fr) |
CN (1) | CN101356341B (fr) |
AT (1) | ATE476582T1 (fr) |
DE (2) | DE102006023711A1 (fr) |
WO (1) | WO2007134757A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007062008B4 (de) * | 2007-12-21 | 2016-11-03 | Robert Bosch Gmbh | Lagerkäfigsteuerung, vorzugsweise für ein Schwenklager einer Axialkolbenmaschine in Schrägscheibenbauart |
DE102012202742B3 (de) | 2012-02-22 | 2013-05-16 | Sauer-Danfoss Gmbh & Co. Ohg | Schrägscheiben-schwenklager mit nachführung des lagerkäfigs für eine axialkolbenmaschine |
DE102019122435B4 (de) | 2019-08-21 | 2021-09-23 | Schaeffler Technologies AG & Co. KG | Schwenkwiegenlagerung und Verfahren zur Herstellung einer Synchronisationsvorrichtung einer Schwenkwiegenlagerung |
DE102020106907A1 (de) | 2020-03-13 | 2021-09-16 | Schaeffler Technologies AG & Co. KG | Schwenkwiegenlagerung und Verfahren zur Herstellung einer Synchronisationsvorrichtung einer Schwenkwiegenlagerung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2521312B1 (de) | 1975-05-13 | 1976-07-22 | Hydromatik Gmbh | Schraegscheiben-schwenklager fuer eine hydraulische axialkolbenmaschine |
DE2625298A1 (de) | 1976-06-04 | 1977-12-22 | Linde Ag | Fuehrungseinrichtung fuer den kaefig eines segmentwaelzlagers |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3000922A1 (de) * | 1980-01-11 | 1981-07-16 | Hydromatik Gmbh | Schraegscheiben-schwenklager fuer eine hydraulische axialkolbenmaschine |
JPS6380327A (ja) * | 1986-09-24 | 1988-04-11 | Nec Corp | プログラム実行の動的管理方式 |
DE3915904A1 (de) * | 1989-05-16 | 1990-11-29 | Hydromatik Gmbh | Hydraulische axialkolbenmaschine in schiefscheibenbauart mit einer nachfuehreinrichtung fuer den kaefig des segmentwaelzlagers der schiefscheibe |
US5390584A (en) * | 1993-10-25 | 1995-02-21 | Caterpillar Inc. | Follow up mechanism for a swashplate bearing |
DE19538835C1 (de) * | 1995-10-18 | 1997-03-13 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit Querverstellung und Drehverstellung der Schwenkwiege |
US6027250A (en) * | 1998-08-21 | 2000-02-22 | The Torrington Company | Roller bearing segment for swashplates and other limited-oscillation applications |
JP2004183621A (ja) * | 2002-12-06 | 2004-07-02 | Mitsubishi Heavy Ind Ltd | 斜板ポンプ又はモータの軸受規制装置 |
DE102005036853A1 (de) * | 2005-08-04 | 2007-02-08 | Brueninghaus Hydromatik Gmbh | Axialkolbenmaschine mit einem länglichen Führungselement für ein Käfigsegment |
-
2006
- 2006-05-19 DE DE102006023711A patent/DE102006023711A1/de not_active Withdrawn
-
2007
- 2007-05-15 WO PCT/EP2007/004322 patent/WO2007134757A2/fr active Application Filing
- 2007-05-15 JP JP2009511371A patent/JP5007375B2/ja not_active Expired - Fee Related
- 2007-05-15 CN CN2007800011540A patent/CN101356341B/zh not_active Expired - Fee Related
- 2007-05-15 EP EP07725239A patent/EP2018465B1/fr not_active Not-in-force
- 2007-05-15 AT AT07725239T patent/ATE476582T1/de active
- 2007-05-15 DE DE502007004652T patent/DE502007004652D1/de active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2521312B1 (de) | 1975-05-13 | 1976-07-22 | Hydromatik Gmbh | Schraegscheiben-schwenklager fuer eine hydraulische axialkolbenmaschine |
DE2625298A1 (de) | 1976-06-04 | 1977-12-22 | Linde Ag | Fuehrungseinrichtung fuer den kaefig eines segmentwaelzlagers |
Also Published As
Publication number | Publication date |
---|---|
DE102006023711A1 (de) | 2007-11-22 |
JP2009537737A (ja) | 2009-10-29 |
EP2018465B1 (fr) | 2010-08-04 |
DE502007004652D1 (de) | 2010-09-16 |
CN101356341A (zh) | 2009-01-28 |
EP2018465A2 (fr) | 2009-01-28 |
JP5007375B2 (ja) | 2012-08-22 |
ATE476582T1 (de) | 2010-08-15 |
WO2007134757A3 (fr) | 2008-04-03 |
CN101356341B (zh) | 2011-09-07 |
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